Baffle gate bearing for one-way rotation



'Jan. 25, 1938. A. LAW

BAFFLE GATE BEARING FOR ONE-WAY ROTATION Filed Sept. 22, 1936 PatentedJan. 25, 1938 iii BBAFELESGATEJBEARING'ZTOR ONEZWAY c iRQTATIDN fAlbertfLawJJaeksomHiglit'sgN11: v v f Applicdtion'sseptemlxcr 2251936Sadat-No. (101,906

(.1 claim. (01. ass-s1) This invention' relates to bafiie 'gates of athetype adapted for :use in subways, :amusement parks and theilike' to:permit' 'passage of *persons ;in one direction only.

Anobj ect' of: the invention is. toprovidesaicheap, simple, convenientand dependable fdeviee :o'fvzthe type above indicated.

.-Another object .is itogprov-ide a -r device-sdfithe above: type :whichmaybe readl1y reversed insidirection orfmaybelocke'd againstiturning.inveither direction.

Other objects and advantages zwill-rbe-apparent as the nature of theinve'ntioniis :moreifully sidisclosed. 1

The novel .:features which :are izbelieve'd :.-to characteristic of thisinvention 1 are pointed aout more .particularlytin .theiclaimappendedihereto.

The broader aspects of the invention' may, however, be better understoodby rferring to the following description, taken: in connection with'-the accompanying :drawing forming :a part thereof, in which oneembodimenteof the invention has been. set forthafor purposes ofillustration.

In the drawing Fig. 1 is a side elevation of a baifle gate emibodyingthe present invention.

Fig. 2 is a vertical section showing the upper and lower bearing membersfor the bafile gate.

Fig. 3 is a horizontal section of the upper bearing member taken on theline 33 of Fig. 2.

Fig. 4 is a horizontal section of the lower bearing member taken on theline 4-4 of Fig. 2.

Fig. 5 is a transverse section of the bearing member housing taken alongthe line 55 of Fig. 3.

Fig. 6 is a partial section of the upper bearing member taken along theline 6-6 of Fig. 3 and Fig. '7 is a similar section of the lower bearingmembertaken along the line 1-1 of Fig. 4.

Referring to the drawing more in detail, the invention is shown asapplied to a bafile gate formed by a vertical shaft 20 having aplurality of rotatable arms 2| secured thereto by coupling members 22.The shaft 20 is mounted for rotation in an upper bearing member 23 and alower bearing member 24 to be described. A plurality of stationarybafiie arms 26 mounted upon a vertical post 2! are positioned to extendbetween the rotating arms 2| so as to limit passage to one side only ofthe bafile gate. A stationary gate, comprising a-plurality of verticalrods 28 mounted upon standards 29, is positioned opposite the stationaryarms 26 in the usual manner to define a. passageway through the bafflegate. v

The upper bearing member 23 is shown more in-iietail in Eigs.' 2,-3, 5,and- 6 =as-*comprisinga housingwfl which is provided with a-p-luralityof"ears 3|eadaptedito be securedto the upper s'ill 32 'by aibolt 33. -The'-housing 30 1s provided-witha central recess 35 in which an:anmnarmembew E36 Lis =rotatably held. The sannul-ar member 36 restsiupon a horizontal flange' 3l df the'ihou'sing :30:andds provided with ahub 38 whichis se'cured to thetshaft'dfli by a=-pin 39 and.- witharrange-to which extends iupwar'dly =within the' recess 35. Gbviously'the hub -38 may -be secured to the sshaift in other convenient aways,su'ch as by welding. v a

sA- 'pairrof diametrically opposite recessesflfi-are c.8180 :provided infthe housing said recesses 15 ibeing disposed: adjacent the flange- 40of the s an- :nular member 36 and 'forming' in c'onnetio'n 'ltherewithsa rpaivdf channels adapted to receive zballs 45 :byawhichthe-notation o' f the' annular .niember is s-controlled. -Tlie'r'ecesses u are ataperedicircuniferentially inflfor-example, acouniter-cloekwise direction, a's' viewedz in Fig. "3. andareprovidedwith inclined bottoms fl which are arranged so the balls 45tend to roll along the recesses toward the narrower section thereof. It25 will be noted that when the annular member 36 is rotated in aclockwise direction the balls 45 roll upwardly along the inclined bottom46 of the recess to the wider portion of the recesses so as to permitfree turning movement of said an- 30 nular member. When the annularmember is turned in a counter-clockwise direction, however, the balls45tend to roll downwardly along the inclined bottom 46 of the recesses44 into the narrower portion of the recess 44 until they be- 5 comewedged between the side of the recess and the flange 40, thereby lockingthe annular member 36 against further rotation in that direction. Thehousing 30 is also provided with a second pair of diametrically oppositerecesses 50 which are arrangedsimilarly to the recesses 44 abovementioned, but are tapered in the opposite direc-. tion and are providedwith bottoms 5| which are inclined in the opposite direction so thatballs 52 in these recesses permit the annular member 36 to be rotated ina counter-clockwise direction, but lock the same against rotation in aclockwise direction.

It is to be understood, of course, that in normal operation only onepair of recesses 44 or are 50 used, the direction of rotation of theannular member 36 being determined by the particular pair of recesses inwhich the balls 45 or 52 are placed. It is also possible to lock theannular member 36 against rotation in either direction 55 by placingballs and 52 in both recesses. This may be desirable, for example, whenan amusement park is to be closed for an extended period of time andprovides a simple means for locking the baflie gate to prevent passageof persons therethrough.

An annular cover 54 is seated on a shoulder 55 formed in the housing 30and is secured by screws 56 inserted through ears 5'! in said housingand preferably extending upwardly from the bottom so that they areaccessible when the bearing member is in operating position.

for purposes of inspection, repair or to. change the direction ofrotation of the b'afiie gate, the housing 36 may be droppedfrom-the'sill 32 'by' loosening the screws 56 and 33. This permitsthehousing to be moved downwardly, leaving the 'an-' nular member 36 andthe cover54 in place. After suitable adjustment of the balls 45 and 52have been made, the housing 30 may be again positioned against the sill32 and secured by the means above indicated.

The lower bearing member, 24 is formed by a housing 60 which is similarto the housing 30 above described except, that ears 6| are formed on thelower part thereof and are adapted to be secured to the lower sill 62 bymeans of screws 63. This lower housing 60 is provided with a pair ofoppositely disposed recesses 64 similar to the recesses 44 abovedescribed and with a second pair of recesses 65 similar to the recesses50 above described. An annular member 66 is formed with a hub 6'!secured to the shaft 20 by a pin 68 and with a flange 69 rotatablymounted in a central recess 10 formed in the housing 66. A cover plate Hcovers the recesses 64 and 65 and is secured to the housing 60 by meansof screws 12. This lower bearing membermay be adjusted, by positioningthe balls in either recesses 64 or 65, for turning either clockwise orcounter-clockwise in the same manner as the upper bearing member 23.Access to the recesses 64 and 65 may be had by loosening the screws 12and removing the cover II.

It is to be understood that in many instances only one of the bearingmembers 23 or 24 may be required, in which case the other member may bereplaced by a simple bearing. If only one such member is used, it may bepositioned either at the bottom or at thetop of the shaft 20 as may beconvenient in any particular instance.

,. H It will be noted that the particular construction In normaloperating position the bearing mem her is secured in the manner-abovedescribedsl, When it is desired, however, to remove theis'a'me' abovedisclosed is simple and inexpensive and is readily-adapted toadjustmentto meet varying conditions of use. It is also to be understood that the,bearing members may be applied to other types of one way stiles and isnot limited to the particular form of baflie gate disclosed herein.

Although a particular embodiment of the invention has been shown forpurposes of illustration, it is :to be understood that various changes.and modifications may be made therein as will be apparent-to a personskilled in the art. The invention is only to be limited in accordancewith the following claim when interpreted in view of the prior'art.

I claim:

A bearing for a baflie plate or the like having a shaft carrying a setof arms, comprising a fixed housing, an annular member secured to saidshaft and rotatably held in said housing, two pairs of diametrically.opposite channels formed between said housing and said annular memberand channels will serve to lock said annular member against-rotation inone direction only.

ALBERT LAW.

